128335840

素因数分解:

$2^5\times 5^1\times {\mathrm{179}}^1\times {\mathrm{4481}}^1$

素因数の和:4675

約数の個数: 48

約数和(自身を含む): 304955280

約数和(自身を除く): 176619440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 179, 358, 716, 895, 1432, 1790, 2864, 3580, 4481, 5728, 7160, 8962, 14320, 17924, 22405, 28640, 35848, 44810, 71696, 89620, 143392, 179240, 358480, 716960, 802099, 1604198, 3208396, 4010495, 6416792, 8020990, 12833584, 16041980, 25667168, 32083960, 64167920, 128335840]

約数ペア:

[(1, 128335840), (2, 64167920), (4, 32083960), (5, 25667168), (8, 16041980), (10, 12833584), (16, 8020990), (20, 6416792), (32, 4010495), (40, 3208396), (80, 1604198), (160, 802099), (179, 716960), (358, 358480), (716, 179240), (895, 143392), (1432, 89620), (1790, 71696), (2864, 44810), (3580, 35848), (4481, 28640), (5728, 22405), (7160, 17924), (8962, 14320)]